With the environmental protection posing as the number one global problem, man has no choice but reducing his energy
consumption, one way to accomplish this is to resort to passive and low-energy systems to maintain thermal comfort in
buildings. The conventional and modern designs of wind towers can successfully be used in the hot arid regions to maintain thermal
comfort (with or without the use of ceiling fans) during all hours of the cooling season, or a fraction of it. Climatic design is one of
the best approaches to reduce the energy cost in buildings. Proper design is the first step of defense against stress of climate. Buildings
should be designed according to climate of the site for reducing the need of mechanical heating or cooling hence maximum natural
energy can be used for creating pleasant environment inside the built envelope. Technology and industry progress of the last decade
diffused electronic and informatics’ devices in many human activities and now appear also in building construction. The utilization
and operating opportunities components, increase the reduction of heat losses by varying the thermal insulation, optimize the lighting
distribution with louver screens and operate mechanical ventilation for coolness in indoor spaces. In addition to these parameters
the intelligent envelope can act for security control and became an important part of the building demotic revolution. Application of
simple passive cooling measure is effective in reducing the cooling load of buildings in hot and humid climates. 43% reductions can
be achieved using a combination of well-established technologies such as glazing, shading, insulation, and natural ventilation. More
advanced passive cooling techniques such as roof pond, dynamic insulation, and evaporative water jacket need to be considered more
closely. The building sector is a major consumer of both energy and materials worldwide, and the consumption is increasing. Most
industrialized countries are in addition becoming more and more dependent on external supplies of conventional energy carriers,
i.e., fossil fuels. Energy for heating and cooling can be replaced by new renewable energy sources. New renewable energy sources,
however, are usually not economically feasible compared with the traditional carriers. In order to achieve the major changes needed
to alleviate the environmental impacts of the building sector, it is necessary to change and develop both the processes in the industry
itself, and to build a favorable framework to overcome the present economic, regulatory and institutional barriers.